Pd-Catalyzed Multidehydrogenative Cross-Coupling between (Hetero)Arenes and Nitroethane to Construct β-Aryl Nitroethylenes
作者:Min Zhang、Peng Hu、Jun Zhou、Ge Wu、Shijun Huang、Weiping Su
DOI:10.1021/ol400507u
日期:2013.4.5
The Pd-catalyzed multidehydrogenative cross-coupling reactions of arenes with nitroethane are described. The established methods afford beta-aryl nitroethylenes that are an important class of synthetic Intermediates and biologically active compounds in an atom- and step-economical fashion. The reactions were applicable to substituted benzenes and a variety of heterocycles such as benzothiophenes, benzofurans, and indoles. Mechanistic experiments Indicated that beta-nitroethylbenzene might be the intermediate in this transformation.
Pd-catalyzed cross-coupling of carboxylic acids with nitroethane via combination of decarboxylation and dehydrogenation
作者:Min Zhang、Jun Zhou、Jian Kan、Min Wang、Weiping Su、Maochun Hong
DOI:10.1039/c0cc01029d
日期:——
An unexpected coupling reaction of arene carboxylicacid with nitroethane via a combination of decarboxylation and dehydrogenation is described. The method provides exclusively (E)-beta-nitrostyrenes.